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Summary of Significant Accounting Policies Unaudited Interim Financial Information - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2024
Business Acquisition [Line Items] |  |  |
Contract asset | $ 1.6 |  | $ 1.5
Contract liability | 4.4 |  | 4.8
Contract liability recognized as revenue | 2.4 |  |
Capitalized contract cost, amortization | $ 0.4 | $ 0.4 |
Percentage purchase model transactions | 25.00% |  |
Purchase of inventory | $ 8.4 |  | 12.2
Prepaid Expenses and Other Current Assets |  |  |
Business Acquisition [Line Items] |  |  |
Contract costs | $ 2.2 |  | $ 2.3

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